Chord · Triads

A♭sus4 — A♭ Suspended 4th

A♭sus4 is the A♭ suspended 4th chord. It is built on the root A♭ with perfect 4th (D♭) and perfect 5th (E♭) above it — the formula 1 4 5, sounding the notes A♭ D♭ E♭. On the piano it sits at Ab (octave 4) and above in the library's voicing; the same 3 notes in any octave are still A♭sus4.

Root
A♭
Quality
Suspended 4th
Formula
1 4 5
Notes
A♭ D♭ E♭

On the keyboard

A♭sus4 on the piano keyboard: A♭ D♭ E♭145A♭D♭E♭

Right-hand fingering for this voicing: 1–4–5 (1 is the thumb).

The notes of A♭sus4

DegreeNoteInterval from the rootPitch
1A♭rootA♭4
4D♭perfect 4thD♭5
5E♭perfect 5thE♭5

Other triads on A♭

Suspended 4th chords on every root

Part of the chord reference. See also the scales and the keys.